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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >How social and genetic factors predict friendship networks
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How social and genetic factors predict friendship networks

机译：社会和遗传因素如何预测友谊网络

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摘要

Recent research suggests that the genotype of one individual in a friendship pair is predictive of the genotype of his/her friend. These results provide tentative support for the genetic homophily perspective, which has important implications for social and genetic epidemiology because it substantiates a particular form of gene-environment correlation. This process may also have important implications for social scientists who study the social factors related to health and health-related behaviors. We extend this work by considering the ways in which school context shapes genetically similar friendships. Using the network, school, and genetic information from the National Longitudinal Study of Adolescent Health, we show that genetic homophily for the Taql A polymorphism within the DRD2 gene is stronger in schools with greater levels of inequality. Our results suggest that individuals with similar genotypes may not actively select into friendships; rather, they may be placed into these contexts by institutional mechanisms outside of their control. Our work highlights the fundamental role played by broad social structures in the extent to which genetic factors explain complex behaviors, such as friendships.
机译：最近的研究表明，友谊对中一个人的基因型可以预测他/她朋友的基因型。这些结果为基因同质性观点提供了初步的支持，该观点对社会和遗传流行病学具有重要意义，因为它证实了特定形式的基因-环境相关性。这个过程对研究与健康和健康相关行为有关的社会因素的社会科学家也可能具有重要的意义。我们通过考虑学校情境塑造遗传相似的友谊的方式来扩展这项工作。使用来自全国青少年健康纵向研究的网络，学校和遗传信息，我们显示，在不平等程度更高的学校中，DRD2基因内Taql A多态性的遗传同质性更强。我们的结果表明，具有相似基因型的人可能不会积极地选择友谊。相反，它们可能会被其控制之外的制度机制置于这些环境中。我们的工作强调了广泛的社会结构在遗传因素解释复杂行为（例如友谊）的程度上所起的基本作用。

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    Jason D. Boardman; Benjamin W. Domingue; Jason M. Fletcher;

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    Department of Sociology, University of Colorado, Boulder, CO,80309-0327,Population Program, Institute of Behavioral Science, University of Colorado, Boulder, CO 80309-0483;

    Population Program, Institute of Behavioral Science, University of Colorado, Boulder, CO 80309-0483;

    School of Public Health, Yale University, New Haven, CT 06520-8034,Robert Wood Johnson Health and Society Scholars Program, Columbia University, New York, NY 10027;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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